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Afla termenul necunosct
a+345=720
624-b=329
c-256=344


Răspuns :

a+345=720
a=720-345
a=375
624-b=329
b=624-329
b=295
c-256=344
c=256+344
c=600

a+345=720

a=720-345

a=375

v:375+345=720

624-b=329

b=624-329

b=295

v:295+329=624

c-256=344

c=256+344

c=600

v:600-256=344